Volosity
Built at Meta Global AI Developer Hackathon · Oct 26, 2026 · Remote
ZBOX ZBOX is an Android app that makes classic Z-machine text adventures playable by everyone — including players who cannot read a screen or type — by tap, voice, and ear. Millions of classic interactive-fiction games exist as Z-machine story files, and almost all of them are unplayable if you cannot read a screen and type. ZBOX is a player built accessibility-first, in the shell made for our own games: tap menus, a 3D fog-of-war map you can grasp at a glance, undo, and autosave, on a one-screen phone layout — story text in one card, a compact status strip, a fixed action bar. A Bluetooth Xbox controller works too: left stick = compass, D-pad up/down = up/down. Bring your own games: INSERT GAME takes any .z3, .z5, .z8 or .zblorb story file. It is copied in and joins your shelf for good, removable per game, and inserted games play through the same engine — transcript, SAY IT voice typing, undo, autosave. Bundled, written for ZBOX: The Lantern Below, an original adventure in the dark under the stacks, and Universe, an original adventure in ten chapters. Also bundled: Figaro, a demonstration game from the public Inform catalogue under GPL v3 (see the licensing note). Under the shell sits a from-scratch interpreter with Quetzal saves that interchange with Frotz, the reference interpreter — a game saved in ZBOX restores in Frotz, and the other way round. The 3D map is built from isometric models generated through the Meta Model API under one style bible (dark, red accent): generated once per content set, cached with the game, and played fully offline. The submitted build is ZBOX v3.1 (Android APK, linked as the demo). Because the games are text with option boxes, an AI can play them too — every choice a player can tap is right there to pick from.